#include <GL/glut.h>

void init(){
	glClearColor(0.0,0.0,0.0,0.0);
	glClearDepth(1.0);
	glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
	glEnable(GL_SMOOTH);
	glEnable(GL_DEPTH_TEST);
}
